Nothing will erode your faith and trust in the Lord Jesus like sin left unconfessed. You cannot live contrary to your convictions very long either your behavior will have to change or your beliefs.
Matthew 4:17
17 From that time on Jesus began to preach, “Repent, for the kingdom of heaven has come
1 John 1:9
9 If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness.
James 5:16
16 Therefore confess your sins to each other and pray for each other so that you may be healed. The prayer of a righteous person is powerful and effective.
“No one is more influential in your life than you are. Because no one talks to you more than you do.”
Remember your calling going forward.
Examine your environments and influences
Psalm 1:1
Blessed is the one who does not walk in step with the wicked or stand in the way that sinners take or sit in the company of mockers
1 Cor 15:33
Do not be misled: “Bad company corrupts good character.
Proverbs 18:1
“Whoever pulls away from others to focus solely on his own desires disregards any sense of sound judgment.”
Romans 8:5 “For those who are according to the flesh set their minds on the things of the flesh, but those who are according to the Spirit, the things of the Spirit.”
You are what you repeatedly do!
Backsliders are generally not Bible readers, because those who seek the Lord read
Same with prayer, Christian fellowship, fasting, practicing the one anothers, and being generous to God.